Part 6. JUNCACEAE 1: Rostkovia to Luzula - Species Plantarum ...

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SPECIES PLANTARUM — FLORA OF THE WORLD (2002)
Luzula multiflora var. gracilis Buchenau ex V.I.Krecz., Žurn. Russk. Bot. Obshch. Akad.
Nauk S.S.S.R. 12: 490 (1928).
T: Russian Far East, Ayan, Avacha R. basin [not located at LE].
Doubtful Hybrid
Luzula ×winderiae Murr, Magyar Bot. Lapok 28: 67 (1930).
T: [Austria] Vorarlberg, supra lacum Spullersee montis Arlberg, c. 1900 m, 7 Aug 1916, J.Murr; holo: n.v.
The name was reported to belong to a hybrid between L. multiflora var. alpestris
[=L. alpina] and L. spicata. The existence of the hybrid is very doubtful.
PREDOMINANTLY AFRICAN SPECIES
60. Luzula mannii (Buchenau) Kirschner & Cheek, Kew Bull. 55: 900 (2000)
Luzula campestris var. mannii Buchenau, Bot. Jahrb. Syst. 12: 159 (1890); Luzula campestris subsp. mannii
(Buchenau) Weim., Svensk Bot. Tidskr. 40: 173 (1946); isonyms: Sóo, Acta Bot. Acad. Sci. Hung. 16: 367 (1971);
Fern.Casas, Fontqueria 33: 41 (1992). T: [Cameroon] Kamerun-Gebirge, 10000–13500 ft, Mann 2108;
lecto: K; iso (fragment): W; Fernando Po, 8500', Mann 658, 1467; para K; Cameroons, H.H.Johnston 48
[the latter erroneously cited as Mann 48 by F.G.P.Buchenau]; para: K.
Perennials 25–60 cm tall; rhizome horizontal or ascending; stolons short, ascending. Leaves
with obtuse tip and densely papillose-serrulate margins, hairy to densely hairy. Lower bract
leaf-like, usually shorter than inflorescence. Inflorescence of mostly pedunculate clusters.
Peduncles smooth, usually with short secondary branches. Capsule shorter than perianth.
Seeds ovoid-subglobular, 0.6–0.8 mm wide; appendage almost invisible, less than 0.1 mm,
hyaline.
A rare endemic with three disjunct populations in tropical Africa (Equatorial Guinea,
Cameroon and the Uganda/Kenya border). Two subspecies are recognized.
Anther/filament length ratio c. 1.5; peduncles ±straight and rigid, 0.3–0.5 mm
in diam.; tepals blackish castaneous brown 60a. subsp. mannii
Anther/filament length ratio 0.3–0.6; peduncles flexuose to arcuate, 0.2–0.3 mm
in diam.; tepals pale castaneous brown to dark brown, usually with a narrow
pale margin and often with a pale yellowish-stramineous middle part 60b. subsp. gracilis
60a. Luzula mannii (Buchenau) Kirschner & Cheek subsp. mannii
Plants 25–60 cm tall. Basal leaves usually 7–9 (–13) cm long, (4–) 5–6 (–8) mm wide;
cauline leaves 2–3, usually 3.5–7.0 cm long and 2.5–4.5 mm wide. Stem rigid, erect, c. 1.7 mm in
diam. Lower bract 2.0–6.5 cm long. Inflorescence composed of 3–4 ±sessile and
2–7 pedunculate clusters; peduncles usually with secondary branches and 1–3 sessile clusters
on each branch; peduncles straight, rigid, erect and patent (very rarely one of them
±nodding), 0.3–0.5 mm in diam., 2–3 (rarely up to 11) cm long; clusters ±echinate,
±globular, 0.6–0.9 (–1.2) cm in diam., usually with more than 13 flowers. Bracteoles long
acuminate, membranous, often with cupreous middle part, up to 3 mm long, equalling
perianth or shorter, densely ciliate. Tepals long acuminate, blackish castaneous brown,
subequal, sometimes one or two outermost ones distinctly longer than inner ones, 2.6–3.0 mm
long. Anthers usually 0.8–1.2 mm long; filaments 0.5–0.9 mm long; style 0.5 mm long;
stigmas 1.5–1.8 mm long. Capsule ±globular, rounded above with an indistinct mucro;
capsule segments 1.8–2.0 mm long and c. 1.5 mm wide, dark brown. Seeds 0.9–1.1 mm long,
0.7–0.8 mm wide. 2n=42, fide J.K.Morton, Opera Bot. 121: 159–172 (1993), n.v. Fig. 26.